Water-still.



1. A. MANAHAN.

WATER STILL.

APPLICATION FILED APR. 5. 1913.

1 w it l. m 3 z vn m d n W fh Z ww 7 .IIIIIIIIII n /L M m .h fu ve 70 i 41 J0 wa C H MM AI nO M 1 l 5M. f2, f .C un mw E l 0J a g 1L N.- .m. .n. u um m r @RN/me awo www JOSEPH A. MANAHN, OF NEW YORK,

N. Y., assIGNon To THOMAS MANA'HAN, or NEW Yoan, mY.

wateren-str1ILL. i

Specification of Letters Patent.

'Patented July c, 1915.

Application led April 54, 1913. Serial No. 759,041.

To all lwhom it may concern:

Beit'known that I, JOSEPH A. MANAHAN,

a citizen of'ithe United States, residing at New York, county of New York, State of New York, have invented new and useful Improvements in Water-Stills, of which the .following is a specification.

This invention relates to a still which is essentially adapted for purifying water by condensation and aeration.

The object'xof the invention is to produce a still whereby continuous operation is ,in-

sured land the water isthoroughlypuriied.

The still is designed toevaporate and to condense the raw ,or impure water and it includes means for mixing a quantity of filtered air with the water. .It also includes means forcooling the aerated water after it flows from the main still.'

The apparatus consists of an evaporator having a tapered steam coil, funnel shaped vapor outlets to cause a partial vacuum for intake of air,` a vapor mixing chamber, a distilled water reservoir, and a condenser located above the vapor outlets.

The invention is more ullydescribed in the following specification and claims. and

illustrated in theaccompanying drawing in vwhich-- Figure 1 represents a vertical section of a still embodying this invention. Fig. 2 is a horizontal -section taken along the line a: a: of the same. Fig. 3 is a detail section of a vapor fimnel.`

Inthis drawing the letter a designates a shell whichincloses an evaporator having a steam coil b with inlet and outlet tubes connected to a boiler to furnish steam forl the coil and heat the water in the evaporating chamber. The steam coil as shown is tapered to prevent air blanketin in evaporation of surrounding water. the' upper portion of the evaporator chamber is'located an air inlet tube 4c provided with one or any number ofupwardly projecting tubes d having contracted nozzles. The air inlet tube has a filter c fixed to the end of the inletto eliminate any impurities in the air. One or a series of funnel shaped vapor inlets f communicate withv the upper portion of the evaporator chamber. Each of the said air tubes d projects into vthe lower portion 'f the funnel shaped inlets f and the nozzle portion of the air tube being approximately inline with the narrow portion of the funnel will cause a partial vacuum for intake of air by reducing its volume thus giving vthorough mixture of air and vapor. The

inlets lead into an air mixing chamber g situated above the evaporator chamber. The mixing chamber forms part of a receptacle la. which is bolted to the said lower shell a and to an upper shell This receptacle is di# vided by a partition to form an aerated water chamber j. An outlet tube lc serves to draw off the aerated water from the said chamber. Tubes m lead from the air and vapor mixing water chamber.

Araw or impure water chamber n is located above the aci-ated water chamber i and an inlet tube o connected to a main supply leads into the chamber. To the lower portion of the raw water inlet chamber is xed one or a series of condenser tubes p.k

chamber g into theI aerated communicating with the aerated water chamber and having open lower and upper ends. Each of the condenser tubes is encircled by a tube q connected to the upper portions of the water chamber n and extending to nearly the top-of the 'condensing tube. This tube g serves to circulate the cold water entering the inlet o around the condensing tube. 'The condensed water excapes from the upper end'of the tube g into a reservoir chamber]l inclosed by the said upper shell i. Th'islchamber has a vent .s extending from the upper portion of the shell to provide means for the escapevof gases or impurities contained in the distilled water. The upper portion of the shell i has a cover of line mesh t heldin place b means of acollar u attached to the shel This reticulated material allows the gases to escape from the open ends of the condenser tubes. A tube 'v communicates with the lower portion of the reservoir and when the valve on the tube is opened it serves to blow oli any sediment lodged in the bottom of the reservoir. An outlet tube lw located at the top of the reservoir extends downwardly to a pipe 12 leading into the evaporator chamber. An overflow pipe 13 is connected to the upper portion of the pipe 12 to draw off the surplus condensing water. A valve 15 .gages the amount of water delivered to the evaporator.

The aerated water can be run through a ico coil ltlocat/ed in a shell l?. lin this con maidens/ed 'and passes struction the cold raw water enters the shell at 18 and passes around the coil to the tube raw water chamber. of the evaporator o and thence into the To the lowerl portion chamber is connected a tube ll which serves as avent to Va sewer or hot well.

When' the still is in operation raw Water under pressure is admitted into the shell l? to pipe o into chamber 'fi-and thence around the condenser tube p where it is vaporized and,- .collected into the the short pipe fm, circulates into the con- -While in operation,

- aerated water is vsomewhat deflected causing a denser tube and is vaporized to low into the chamber j where it can be drawn od in a pure state. Y By havin the coil b tapered it transmits all its eat units directly to the surrounding water in the evaporation chamber.

llt wil be seen that the still is continuous the im ure water being ted continuouslyinto the still while the pure drawn od for use.

lit should be said that b having the vapor tubes f with contracted central portions and a wide mouthl the air and vapor are artial vacu` umat this point, circulating t e volume ot vapor and thus completely mixing' the two gases before they ascend into the condenser.

theater l. A. water still comprising a shell, an evaporator chamber located in the shell, an air mixing chamber' arranged above the evaporator chamber, a series otvapor outlets having enlarged inlet and discharge ends and contracted centers communicating with both chambers, an air inlet tube extending into each ol the vapor outlets nearly to the contracted *centers thereof, `and a condenser situated above the vapor outlet; y 2. A. water still comprising a shell, an

evaporator chamber ,located in the shell, an.

air mixing chamber varranged above the evaporator` chamberpasteam coil disposed inthe evaporator chamber, vapor outlets .having enlargedfinlet and discharge ends l cated between the condenser and the aerated water chamber, means including a shell connected withthe raw water chamber, and a .coil within the shell connected to the aerated water chamber for drawing olif and cooling the water.

deserti a. tramitan.

Witnesses; I v

-' Wat. E. Yllanrruun,

(Umts. Arrrsranrfr. 

